Imagine if you could continuously transform NXT data without running a global update (or other manual methods, like a flat file).
Example: OC formula that begins with NXT Action List. When an action fitting the criteria is added, transform it into a Consent Table entry and write it back to the NXT constituent record. Run it continuously.
Current capabilities of RE business rules or NXT Workflow don't extend this far or offer this much flexibility. Even if NXT Workflow eventually grows into this space, I doubt it'll offer the full fields OC does.